Lag-3 protein soluble polypeptide fractions, method of production, therapeutic composition and anti-idiotype antibody
CA 2189657 C · Owner: Merck Serono Sa · Inventors: Huard, Bertrand; Hercend, Thierry; Triebel, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Soluble polypeptide fraction consisting of all or part of one at least of the four immunoglobulin-type extracellular LAG-3 protein domains (aminoacid 1-159 160-239, 240-330 and 331-412 of the SEQ ID N~ 1 sequence) or consisting of one peptide sequence derived from these domains by replacement addition or deletion of one or more aminoacids. The fraction of the invention has a specificity at least equal to that of LAG-3 in relation to its ligand.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 5, 1995 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.